Mobrey - Warren Bestobell
Mobrey - Warren Bestobell
Mobrey - Warren Bestobell
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Control Units<br />
Standard control heads and chambers<br />
D<br />
F<br />
E<br />
Type<br />
number<br />
Material<br />
Max. press.<br />
kg/cm2<br />
Connections<br />
A<br />
B<br />
C<br />
D<br />
E<br />
F<br />
G<br />
81006<br />
Cast iron<br />
13<br />
Side &<br />
bottom<br />
BS4504<br />
25-16/11<br />
468<br />
100<br />
102<br />
277<br />
390<br />
430<br />
-<br />
81007<br />
Fabricated<br />
steel<br />
21<br />
Side &<br />
bottom<br />
BS4504<br />
25-40/2<br />
468<br />
100<br />
87<br />
277<br />
390<br />
430<br />
-<br />
81008<br />
Fabricated<br />
steel<br />
21<br />
Side &<br />
side<br />
ND 25<br />
NW 25<br />
570<br />
100<br />
100<br />
335<br />
390<br />
430<br />
270<br />
81951<br />
Forged<br />
steel flange<br />
21<br />
Direct<br />
mounted<br />
BS4504<br />
100/40/2<br />
-<br />
-<br />
-<br />
-<br />
390<br />
430<br />
-<br />
Models are available for up to 32kg/cm2 steam working. Details on request<br />
Control Box Electrical characteristics<br />
Type number 80436 80660<br />
Input supply 240V ac 110V ac<br />
6 Holes Ø 20.0<br />
50/60Hz + 10% 50/60Hz + 10%<br />
4 Holes<br />
Ø 7.1<br />
235<br />
85<br />
B<br />
Modulating Valves<br />
A<br />
42<br />
152<br />
235<br />
254<br />
Ambient temperature: 1 O - 60 O C<br />
Conduit connection 6 holes suitable for PG16<br />
Valve body: Cast steel<br />
Max. feed line pressure: 40kg/cm 2<br />
Min. feed line pressure: 5.3kg/cm 2<br />
Max. feed line temp.: 120 o C<br />
Flanged BS4504-40-40/1<br />
(DIN ND40 NW40)<br />
and BS10 table H<br />
F<br />
E<br />
D<br />
C<br />
C<br />
½” BSP<br />
C<br />
81006 81007 81008<br />
E<br />
B<br />
A<br />
F<br />
E<br />
D<br />
A<br />
D<br />
B<br />
G<br />
B<br />
A<br />
C<br />
Input circuit protected by 1 amp HRC fuse.<br />
Alarm and control relays protected by 2 amp HRC fuses.<br />
Relay contacts voltage free rating:-<br />
Max. voltage 250V ac Max. current 2 amp<br />
Facility available to special order for separate supply to<br />
solenoid valves with 2 amp HRC maximum protection.<br />
Output option: 0-10V available on request.<br />
IMPORTANT NOTICE<br />
Electronic control box must not be subjected to either<br />
vibration or excessive temperature. It is therefore<br />
recommended that they are not mounted directly on to<br />
the boiler shell.<br />
Type number<br />
80310/*<br />
80311/*<br />
80653/*<br />
80486/*<br />
80310/80435/*<br />
80311/80435/*<br />
80653/80435/*<br />
Flanged<br />
Table H<br />
ND40<br />
NW40<br />
NW40<br />
Table H<br />
ND40<br />
NW40<br />
No. of Electrical<br />
solenoid valves supply<br />
2<br />
2<br />
2<br />
2<br />
3<br />
3<br />
3<br />
230V ac 50Hz<br />
230V ac 50Hz<br />
110V ac 50Hz<br />
230V ac 60Hz<br />
230V ac 50Hz<br />
230V ac 50Hz<br />
110V ac 50Hz<br />
* Stroke letter to indicate valve lid size required:<br />
A 200 B 150<br />
C 406 D 140<br />
E 425<br />
Note The internal trim on the Modulating valve can be<br />
changed without the need to replace the valve<br />
should operating conditions change.
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